Photooxidation of hydrocarbons
AssigneeTexaco Inc.
InventorsMordechai Pasternak, Abraham Morduchowitz
Life of this patent
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Abstract
Photooxidation of cyclohexene or tetralin is effected preferably in the presence of a photosensitizer such as an aliphatic ketone by light of wave length of about 2000 .ANG.-7000 .ANG. to form hydroperoxide, alcohol, and ketone products in good photoconversion yield and selectivity.
Claims12
The method ##STR5## which comprises maintaining in liquid phase, under photo-oxidation conditions, a charge liquid containing ##STR6## wherein X is hydrogen or together both X's form a 1,3-butadiene chain cyclized to form a benzene ring;
- contacting said charge liquid with oxidizing agent during a photooxidation reaction;
- irradiating said charge liquid with radiation containing wave lengths of 2000 .ANG.-7000 .ANG. during a photooxidation reaction thereby forming reaction medium containing oxidized charge liquid containing ##STR7## and recovering said reaction medium containing oxidized charge liquid containing ##STR8##
The method of converting tetralin to product containing alpha-tetralol, alpha tetralone, and alpha-tetralone hydroperoxide which comprises
- maintaining in liquid phase, under photo-oxidation conditions, a charge liquid containing tetralin;
- contacting said charge liquid containing tetralin with oxygen during a photooxidation reaction at 0.degree. C.-150.degree. C. and 0-200 psig;
- irradiating said charge liquid containing tetralin with radiation containing wave lengths of 2000 .ANG.-7000 .ANG. thereby forming reaction medium containing alpha-tetralol, alpha tetralone, and alpha-tetralone hydroperoxide;
- and
- recovering said reaction medium containing alpha-tetralol, alpha tetralone, and alpha-tetralone hydroperoxide.
Dependencies are inferred from the claim text.